GENERAL DESCRIPTION (continued from Page 1) Each VR has its own VR latch that holds its programmed resistance value. These VR latches are updated from an SPI- compatible, serial-to-parallel shift register that is loaded from a standard 3-wire, serial-input digital ...

Like a mechanical potentiometer, RDAC is symmetrical. The resistance between the Wiper W and Terminal A also produces a digitally controlled complementary resistance, R these terminals are used, the B terminal can be tied to the wiper or left floating. ...

AD8400/AD8402/AD8403 APPLICATIONS The digital potentiometer (RDAC) allows many of the applica- tions of a mechanical potentiometer to be replaced by a solid- state solution offering compact size and freedom from vibration, shock, and open contact problems encountered in hostile environments. ...